Question

How would I access every option of a select except the one that is selected?

I am trying, but with no success:

$('select[id^="buyingSupplierRef"]').live('mouseleave', function()
{
    $(this+' option:not(option:selected)').each(function(){
    $(this).detach() ;
})

Answer 1

Try the following:

$('option:not(:selected)', this).each(function(){
   // ...
})

Note that live() is deprecated, you can use on() instead.